I need DESIGNATED space on my time capsule, so....

Question

is there a way to partition it?  I bought the TC with the idea that all my Macs would back up automatically, but i also have a lot of old work (graphics, pics, etc) that i would like to store on the drive instead of carrying around my portable.  Any idea's or work-a-rounds?

Answer 1

GREAT ANSWER/SOLUTION
Or, there is a workaround, to "reserve" some space there, by creating a disk image of the desired size and storing your data there, but it's rather cumbersome, and two Macs can't share it at the same time.
Here's how to reserve some space with a disk image (connect via Ethernet if possible):
a.Start the Disk Utility app (in your Applications/Utilities folder). Click the New Image icon in the toolbar (or select File > New > Blank Disk Image from the menubar). If the little arrow to the right of the "Save As" box points down, click it so it points up.
b.Give it a name in the "Save as" box. This name will appear on the Time Capsule's disk, with ".dmg" appended. (Similar to the way the sparse bundle containing your Time Machine backups appears, with ".sparsebundle" appended).
c.Click your Time Capsule in the sidebar. It may take a few moments for Disk Utility to recognize it, and show it in the center pane.
d.In that center pane, select the blue Share folder for your Time Capsule (you may need to scroll down, or enlarge the window, to see it). Once selected, you'll see any existing disk images in the right pane.
e.Give the Partition a name. This name will appear on your desktop and/or Finder sidebar when you mount the .dmg by double-clicking it, if you have the External Disks box checked in Finder > Preferences > General  or  Finder > Preferences > Sidebar.
f.Select the Size for the amount of space you want to reserve, either one of the pre-sets or Custom which allows any size. Avoid taking all the remaining space for the disk image, as Time Machine needs a bit of room to operate. Also note that if very little space is left, it will begin deleting old backups very soon, to make room for new ones.
g.Select the desired Format, probably the default of Mac OS Extended (Journaled).
h.If you want it encrypted, select the desired type.
i.Select single partition, either GUID or Apple Partition Map.
j.Select Read/Write disk image for Image Format.
k.Click the Create button. The larger the image size, the longer this will take.
When complete, the new disk image will be automatically mounted on your Mac's desktop, ready to receive the files you want to move into it. (When you first open a disk image, there may not be a sidebar and/or toolbar; if so, select View > Show Toolbar from the Finder menubar.)
To access this disk image from another computer, you must first eject it from this one, since only one can mount it at a time. Otherwise, the other one will see a message that the disk image is "Temporarily unavailable."
Note that you may be able to change the size of this disk image later, via Images > Resize from the Disk Utility menubar (while the disk image is not mounted or selected in Disk Utility's sidebar). That will not work, however, with the sparse bundle that Time Machine uses.